Infrared spectroscopy across scales in length and time at BESSYâ
II.
J Synchrotron Radiat
; 31(Pt 3): 613-621, 2024 May 01.
Article
in En
| MEDLINE
| ID: mdl-38652580
ABSTRACT
The infrared beamline at BESSYâ
II storage ring was upgraded recently to extend the capabilities of infrared microscopy. The endstations available at the beamline are now facilitating improved characterization of molecules and materials at different length scales and time resolutions. Here, the current outline of the beamline is reported and an overview of the endstations available is given. In particular, the first results obtained by using a new microscope for nano-spectroscopy that was implemented are presented. The capabilities of the scattering-type near-field optical microscope (s-SNOM) are demonstrated by investigating cellulose microfibrils, representing nanoscopic objects of a hierarchical structure. It is shown that the s-SNOM coupled to the beamline allows imaging to be performed with a spatial resolution of less than 30â
nm and infrared spectra to be collected from an effective volume of less than 30â
nm × 30â
nm × 12â
nm. Potential steps for further optimization of the beamline performance are discussed.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
J Synchrotron Radiat
Journal subject:
RADIOLOGIA
Year:
2024
Document type:
Article
Affiliation country:
Germany